The murderous attack on a Sikh temple in Wisconsin this past Sunday by neo-Nazi skinhead Wade Michael Page was just the latest in a series of terrorist incidents and plots by the radical right in recent months and years. It comes in the midst of explosive growth on the radical right – growth fueled by America’s increasing diversity, its economic problems and the election of the nation’s first black president.

The murderous attack on a Sikh temple in Wisconsin this past Sunday by neo-Nazi skinhead Wade Michael Page was just the latest in a series of terrorist incidents and plots by the radical right in recent months and years. It comes in the midst of explosive growth on the radical right – growth fueled by America’s increasing diversity, its economic problems and the election of the nation’s first black president.

Earlier this year, the Southern Poverty Law Center documented a third straight year of extraordinary growth that has swelled the ranks of extremist groups to record levels. The SPLC is now tracking 1,018 hate groups – a 69 percent increase since 2000.

In addition, the SPLC has documented a powerful resurgence of the antigovernment “Patriot” movement, which in the 1990s led to a string of domestic terrorist plots, including the Oklahoma City bombing. The number of Patriot groups, including armed militias, grew by 755 percent in the first three years of the Obama administration – from 149 at the end of 2008 to 1,274 in 2011.

Following is a list of SPLC resources related to the shooting in Wisconsin, the rise of extremism, the neo-Nazi skinhead movement and the racist music scene.